interface BackgroundTypeChatThemeimport { type BackgroundTypeChatTheme } from "https://deno.land/x/grammy@v1.24.1/types.deno.ts"; The background is taken directly from a built-in chat theme. Propertiestype: "chat_theme"Type of the background, always “chat_theme” theme_name: stringName of the chat theme, which is usually an emoji